<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            width: 150px;
            height: 150px;
            background-color: palegreen;
        }
        .box:hover{
            transform: skew(15deg,45deg);
            background-color: cadetblue;
        }
        .box2{
            width: 150px;
            height: 150px;
            background-color: pink;
        }
        .box2:hover{
            transform: scale(0.5);
            background-color: skyblue;
        }
        .box3{
            margin-left: 50px;
            border: 1px solid black;
            width: 50px;
            height: 50px;
            transform: rotate(45deg);
            border-top: none;
            border-left: none;
            
        }
        /* .box3:hover{
            border: 1px solid black;
            transform: rotate(30deg);
            border-left: none;
            border-top: none;
        } */
        .box4{
            width: 10px;
            height: 10px;
            border-top: 1px solid lightblue;
            border-right: 1px solid lightblue;
            transform: rotate(45deg);
        }
    </style>
</head>
<body>
    <div class="box"></div>
    <br>
    <div class="box2"></div>
    <br>
    <div class="box3"></div>
    <br>
    <div class="box4"></div>
</body>
</html>